I am looking to upgrade some of my reloading components and need a little help. I currently have an old set of Lee dies that I was given when I bought my rock chucker press used. I want to get a set of Redding .308 dies but am not sure which ones to get. I have been looking online and am just a little confused as to which ones to get. What exactly are the S type dies? Is there any advantage to a just using a neck die vs a full length die? Is the full length 2 die set good enough or would you recommend a different set or combination of dies? Sorry for the stupid questions and thanks in advance for any help received.